>1qx4B (B:) observed residues (from ATOM records)
hmitlenpdikyplrlidkeilshdtrrfrfalpspqhilglpigqhiylstridgnlvi
rpytpvssdddkgfvdlvvkvyfkeaggkmpqylenmnigdtiefrgpngllvyqgkgkf
airadkksnpvvrtvksvgmiaggtgitpmlqviravlkdpndhtvcyllfanqsekdil
lrpeleelrnehssrfklwytvdkapdawdysqgfvneemirdhlpppgeetlilmcgpp
pmiqfaclpnlervghpkercftf